Django 覆盖保存以创建范围的多个对象()

我想覆盖Django表单保存方法，以便能够一次创建多个对象.

我有一款AvailableHours型:

class AvailableHours(models.Model):
    free_date = models.ForeignKey(AvailableDates,null=True, blank=True,on_delete=models.CASCADE,related_name='freedate')
    free_hours_from = models.IntegerField(null=True, blank=True)
    free_hours_to = models.IntegerField(null=True, blank=True,)
    status = models.BooleanField(null=True,default=True,)

我有一个这个类的ModelForm:

class TimeGenerator(forms.ModelForm):
    class Meta:
        model = AvailableHours

        fields = ['free_date','free_hours_from','free_hours_to','status']

    def save(self, commit=True):
        m = super(TimeGenerator, self).save(commit=False)
        self.free_hours_from = self.cleaned_data['free_hours_from']
        self.free_hours_to = self.cleaned_data['free_hours_from'] +1
        m.save()
        for hour in range(self.cleaned_data['free_hours_from'],self.cleaned_data['free_hours_to']+1):
            self.free_hours_from = self.cleaned_data['free_hours_from']+hour
            self.free_hours_to = self.cleaned_data['free_hours_from']+hour+1
            print(hour)
            m.save()

我想创建多个AvailableHour对象，如下所示: 如果将表单设置为FREE_HOURS_FROM=13和FREE_HOURS_TO=16 因此，保存方法创建13-14、14-15、15-16

我在上面的表单中写了一段代码，并覆盖了save()，但它不起作用. 有人有解决办法吗？